Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
One ragweed plant can release as many as one billion grains of pollen!
51
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The smell of freshly cut grass is actually a plant distress call.
31
Pumice is the only rock that floats on water.
14